How useful is the study of the nature of body cavity and coelom in the classification of animals?

How is the study of plant anatomy useful to us?

What allows us to make classification groups ?

How is the study plant anatomy useful to us ?

How are the areas of study - evolution and classification - interlinked ?

Body cavity of cockroach is called-

Taxonomic key is one of the taxonomic tools in the identification and classification of plants and animals. It is used in the preparation of